Kelly KDZ Series/PM Motor Controller User
’s Manual
V 3.5
18
Table 1: LED CODES
LED Code
Explanation
Solution
Green
Off
No power or
switched off
1. Check if all wires are correct.
2. Check fuse and power supply.
Green
On
Normal operation
That’s great! You got solution!
1,2
¤ ¤¤
Over voltage error
1.
Battery voltage is too high for the controller.
Check battery volts and configuration.
2.
Regeneration over-voltage. Controller will have
cut back or stopped regen.
3.
This only accurate to
±
2% upon Overvoltage
setting.
1,3
¤ ¤¤¤
Low voltage error
1. The controller will clear after 5 seconds if battery
volts returns to normal.
2. Check battery volts & recharge if required.
1,4
¤ ¤¤¤¤
Over temperature
warning
1. Controller case temperature is above 90
℃
.
Current will be limited. Reduce controller
loading or switch Off until controller cools down.
2. Clean or improve heatsink or fan.
2,2
¤¤ ¤¤
Internal volts fault
1. Measure that B+ & PWR are correct when
measured to B- or RTN.
2. There may be excessive load on the +5V supply
caused by too low a value of Regen or throttle
potentiometers or incorrect wiring.
3. Controller is damaged. Contact Kelly about a
warranty repair.
2,3
¤¤ ¤¤¤
Over temperature
The controller temperature has exceeded 100
℃
.
The controller will be stopped but will restart when
temperature falls below 80
℃
.
2,4
¤¤ ¤¤¤¤
Throttle error at
power up
1. The throttle got effective signal at key-on. Cycle
throttle can remove the error. You may
reconfigure throttle effective range or foot switch
2. The acceleration throttle must be turned from
zero up to high when the brake is released.
Otherwise the controller will report this fault.
3,1
¤¤¤ ¤
Frequent reset
May be caused by over-voltage, bad motor
intermittent earthing problem, bad wiring, etc.
3,2
¤¤¤ ¤¤
Internal reset
May be caused by some transient fault condition like
a temporary over-current, momentarily high or low
battery voltage. This can happen during normal
operation.
